stock-brief

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations present; description covers read-only nature, data returned, and cost. However, lacks details on error handling, rate limits, or what happens with invalid tickers. Adequate but not comprehensive.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Three sentences, no redundancy. Clearly states purpose, returns, and alternatives. Could be slightly more structured (e.g., bullet points) but remains efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

No output schema; description lists return items but not their structure. For a combined tool with two data sources, more details on output format would improve completeness. Adequate for familiar users.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with descriptions for both parameters. The description adds context: examples for ticker, default and filtering behavior for market_limit. Adds meaningful extra info beyond schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states it provides a US equity snapshot and Limitless prediction market sentiment in one call, listing specific data points (current price, intraday change, volume, 52-week range) and distinguishing it from separate sibling tools.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly identifies itself as a single-call alternative to separate 'limitless-markets' and 'us-stock-price' calls, guiding when to use it. Could add more on when to prefer the separate tools, but the alternative is clearly named.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.